Round-9-Road America, Wisconsin, USA
7-9 August, 2015, Elkhart Lake, Wisconsin, USA
, 911, Porsche, 911 RSR, GTLM, Nick Tandy, Patrick Pilet, 48, Audi, R8 LMS, GTD, Christopher Haase, Dion von Moltke
? 2015, Michael L. Levitt
LAT Photo USA